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Biomedical subjects

J Ducassou

Publications and source records attributed to J Ducassou.

At least 37 records · Page 2Linked to original sources
PubMed1985

[The vena cava in surgery of renal cancer in the adult].

In a series of 171 radical nephrectomies performed by the authors, 10 patients presented vena cava extension (5.8%). The extension was infrahepatic (stage C) in 6 cases, retrohepatic (stage B) in 1 case and involved the right auricle (stage A) in 2 cases, while the upper limit of the thrombus could not be defined in the remaining case. All patients were operated upon. There was one post-operative death (stage B), while the other patients had an uncomplicated post-operative course, despite the need for open-heart surgery in two cases. Seven patients died from metastatic after an interval of 2 and 4 years. The prognosis is therefore reserved, but seems to be better than in the case of lymph node metastases, justifying an aggressive surgical approach.

Humans↗
PubMed1984

[Tumors of the upper urinary tract. Analysis of a series of 85 cases].

Case-reports of 85 patients with upper urinary tract tumors were reviewed. Mainly affected were males (87% of cases), particularly over 60 years of age, the principal presenting sign being hematuria. Other signs such as renal colic, lumbago or infections were observed more rarely. The renal pelvis was affected in 52 of the 85 patients (two of these were bilateral), multiple tumor foci being present in only 6 cases. Most tumors were epitheliomas (62 papillary and 13 non-papillary), with 52 of these at the superficial stage (0 or A), 21 at stage B 1 and 5 at stage B II or C. Based on Broders' classification, 48 were grade II and 16 grade III tumors. Prognosis was routinely poor in 5 patients with a stage B or C tumor and lymph node extension. Diagnosis is by intravenous urography, although retrograde ureteropyelography has its place, with increasing interest being given to ultrasound and computed tomography examinations combined with routine cystoscopy. If no particular contraindications exist, the preferred treatment is a total one-stage nephro-ureterectomy without curettage (52 cases), although curettage was performed at the same time in 9 other patients. Conservative surgery has only a limited application: 6 patients had segmental resections of the ureter and 2 patients underwent tumorectomy. Postoperative mortality was particularly loco: 4 patients (4,7%), mainly from vascular or respiratory diseases. (4,7%), mainly from vascular or respiratory diseases. Bone (5 cases), pulmonary (3 cases) and medullary (1 case) metastases represented the main cause of death during the year following surgery, all these patients having infiltrating tumors.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1984

[Reflections on a series of 39 cases of primary vesico-renal reflux in adults].

The authors report thirty nine cases of primary vesicorenal reflux in adults, involving sixty nine ureters. The series includes two women for every three men, with an onset normally in the twenties (the average age was 28 years and 6 months). In 86.6% of the patients, the disorder was revealed by urinary infections, and the case history extended back over an average of eight years. The urinary infection had a severe impact on the renal parenchyma, so that 54% of the patients presented with bilateral parenchymal lesions. Isotopic cystography appears to provide a more sensitive diagnostic tool than conventional radiological cystography, and the radiation effects are far less pronounced, so that the examination can be repeated more frequently in search of intermittent refluxes in patients with pyelonephritic lesions. The surgical management is by uretero-vesical reimplantation. The authors presently prefer Cohen's technique, which gives 88% good results. On the other hand, after surgical élimination of the urinary infection, the pyelonephritic lesions or renal insufficiency are irreversible, but they remain stable.

Adult↗
PubMed1984

[Obstetric and neonatal consequences of urinary infection during pregnancy].

In this article, the authors study the real obstetrical and neonatal effects of urinary infection in pregnant women. Basing themselves on 225 cases of gravidic urinary infection, the authors discuss asymptomatic bacteriuria, the need of early diagnosis in risk patients, and the use of regular post-treatment monitoring, in view of the fact that, even when well-treated, this complaint is apt to recur.

Bacteriuria↗
PubMed1983

[Dilatation of the urethra by inflatable balloon catheter].

An inflatable balloon catheter of the Gruntzig type was used to dilate the urethra of 25 patients. The procedure involves atraumatic catheterization by a vascular catheter under televised urethroscopy, followed by introduction on a flexible guide of the balloon catheter which is then inflated. The stenosis is visible on the balloon and the rapidity with which it "yields" can readily be appreciated. Control of dilatation is effected by voiding urethrography. This method entails much less discomfort than conventional urethral dilatation. No complication was observed in this series. Stenosis recurred in 3 patients who subsequently underwent a second balloon dilatation.

Dilatation↗
PubMed1981

[Results of endoscopic urethrotomy (author's transl)].

The authors report the results of 63 internal urethrotomies for urethral stenosis performed during a four year period. The essential sites were perineal and the most frequent aetiology iatrogenic, particularly after prostatectomy. Overall, the authors obtained 18 satisfactory results, 2 severe complications, 24 failures and 17 patients are too recent to assess or were lost from sight. A second endoscopic urethrotomy gave only very little chance of a definitive recovery. Although the results were not constantly excellent, the series studied by the authors shows that endoscopic internal urethrotomy offers the possibility by a simple technique of obtaining a certain number of durable successes whilst not interfering with the subsequent performance of other types of urethroplasty. Finally, in a certain number of cases endoscopic internal urethrotomy facilitates subsequent dilatations.

Endoscopy↗
PubMed1977

[Urological aspect of vesico-intestinal fistulas. Apropos of 14 cases].

This series of 14 cases of vesico-intestinal fistulae, together with a review of the literature, led to a certain number of remarks: From an aetiological standpoint, in addition to classical concepts with the predominance of diverticulosis of the colon accounting for 46% of cases, followed by carcinoma of the colon (14%) and Crohn's disease, we feel it to be of interest to stress the possible urinary origin of vesico intestinal fistulae (4 of our cases, and 4.5% of the total number collectedin the literature). From a diagnostic standpoint, we would emphasise that these fistulae present almost solely with urinary symptoms and signs and stress the clinical importance of what is now known, since J. Cibert, as "pre-fistulous cystitis" preceding the development of pathognomic signs--faecaluria and pneumatria. Radiological opacification of the colon and rectum is essential in patients with a syndrome of chronic urinary infection unexplained by a urological cause. From a therapeutic standpoint, the surgical treatment of vesico-intestinal fistulae is associated with a high operative mortality (2 deaths amongst our 14 patients) and which, independently of the aetiological factor (predominance of carcinomas) is explained above all by the septic nature of the lesions.

Adult↗